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svet-max [94.6K]
2 years ago
15

Let P(x) denote the statement "2x+5 > 10." Which of the following is true?

Mathematics
1 answer:
ruslelena [56]2 years ago
4 0

Answer: P(3) is True

Step-by-step explanation:

The given statement is an inequality denoted as P(x). To find out which of the options is true you have to evaluate each given value of X in the inequality and perform the arithmetic operations, then you have to see if the expression makes sense.

For P(0): Replace X=0 in 2x+5>10

2(0)+5>10

0+5>10

5>10 is false because 5 is not greater than 10

For P(3): Replace X=3 in 2x+5>10

2(3)+5>10

6+5>10

11>10 is true because 11 is greater than 10

For P(2): Replace X=2 in 2x+5>10

2(2)+5>10

4+5>10

9>10 is false

For P(1): Replace X=1 in 2x+5>10

2(1)+5>10

2+5>10

7>10 is false

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-6a + 2a= -36 pls help
miv72 [106K]

Answer:

a = 9

Step-by-step explanation:

-6a + 2a = -36

-4a = -36

a = -36/-4

a = 9

5 0
3 years ago
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What is the y-value of the solution to the system of equations {3x+4y=42x−4y=6?
timofeeve [1]

The value of y for the system of equation is -1/2 .

<h3>What is a System of Equation ?</h3>

A system of equation is a set of equation that have common solution

The set of equation given is

3x+4y=4

2x−4y=6

To solve the system , Elimination method will be used

Add equation 1 and 2 to eliminate y

5x  = 10

x = 2

Substitute the value of x in equation 1 to determine y

3x +4y = 4

6 + 4y = 4

4y = -2

y = -1/2

Therefore the value of y for the system of equation is -1/2 .

To know more about System of Equation

brainly.com/question/12895249

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7 0
2 years ago
A science test has 20 questions. A student answers 80% of the questions correctly.
natita [175]

Answer:

16 questions answered correctly

Step-by-step explanation:

Since the student answered 80% of the questions correctly, we can find 80% of 20 to answer this question.

[] First we will convert the percent into a decimal format;

80% / 100 = 0.8

[] Then we will multiply this by 20 to find our answer;

20 * 0.8 = 16 questions answered correctly

8 0
2 years ago
Please help with math. I'm not sure about this question and I'm not very well at graphing! Is anybody able to show me the soluti
dmitriy555 [2]
I’m not too sure but you got this
5 0
2 years ago
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If y=1/4x and x=-12 find y​
miss Akunina [59]

Answer:

y=-3

Step-by-step explanation:

8 0
2 years ago
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